Most small businesses look at their numbers when something goes wrong: the bank balance is low, a tax bill arrives, a lender asks for accounts. A month-end close makes looking at the numbers a habit instead of an emergency. It is a short routine, done on the same days each month, that makes sure the records are complete and the figures are believable. After a few months, it takes a few hours.

Why close the month at all?

If you never close the books, errors pile up. A missing receipt, a payment recorded twice or a sale not entered will sit quietly until the year end, when they are hard to trace. Closing the month catches them while you still remember what happened, and gives you a monthly picture of profit and cash that you can act on.

Set a closing date

Pick a day, such as the fifth working day of the month, by which the previous month must be closed. Tell everyone who supplies information, such as the shop manager, the person who handles M-Pesa and the one who keeps invoices, what is needed and by when. A fixed date makes the process predictable.

Step 1: Enter everything

Make sure every sale, purchase, payment and receipt for the month has been recorded. Collect the paper and digital documents and enter what is missing. Use a cashbook that you update at least weekly; the simple cashbook is a good start. How to keep business records for KRA sets out what to keep.

Step 2: Reconcile bank and mobile money

Compare your records with the bank statement and the M-Pesa statement for the month, line by line. Differences are either timing items, like a cheque not yet cleared, or errors you must correct. Bank reconciliation, step by step shows the method, and how to use M-Pesa statements to prove income and expenses covers mobile money. A reconciled balance is the most important check you can make.

Step 3: Review customers and suppliers

List who owes you and who you owe. Chase invoices that are overdue, and plan payments to suppliers. The aged receivables tracker and the accounts payable ageing schedule group balances by age. Agree the totals with your records, and with supplier statements where you have them.

Step 4: Count stock

If you hold stock, count it, or at least a sample of the fast-moving lines, and compare it with your records. Value the closing stock at cost and record the difference. Stock valuation for small shops: average cost explained shows one simple method. Without a stock figure, you cannot work out the cost of goods sold or the real profit.

Step 5: Accrue and prepay

Some costs belong to the month but have not been paid, such as electricity used or wages earned; add them as accruals. Some payments are made now for later months, such as insurance or rent in advance; record the part that belongs to future months as a prepayment. This matching step gives a truer profit for the month. The prepayments and accruals schedule keeps track.

Step 6: Check the tax figures

Make sure the VAT, PAYE and other taxes for the month agree with your records, and that they are paid by their deadlines. The KRA filing calendar for small businesses shows the dates. Use the VAT return calculator or the turnover tax calculator to check the amount.

Step 7: Produce and read the numbers

Prepare a simple profit and loss statement and a cash summary for the month, and compare them with the budget and with the same month last year. How to read a profit and loss statement helps with the interpretation. Ask: Is the margin where it should be? Are costs rising faster than sales? Is cash going up or down, and why?

Step 8: Lock the month

Once you are satisfied, save a copy of the workbook with the month in the name, and treat that month as closed. Changes to a closed month should be rare and recorded. A closing checklist keeps you consistent; the year-end closing checklist and adjustments can be adapted for a monthly use as well.

Keep it short and regular

The first close may take a weekend. By the third, it should take an afternoon. The value is not in a perfect process but in doing it every month. When the year ends, you will have twelve reconciled months behind you, and the annual accounts and tax return will be a summary of work already done.